CBR0435I   CHGCOL rejected due to invalid specification.

OAMUTIL command is submitted in the form of:

OAMUTIL CHGCOL collection-name
             SGN(storage-group-name)
             [OLDSCN(old-storage-class-name)
             NEWSCN(new-storage-class-name)]
             [OLDMCN(old-management-class-name)
             NEWMCN(new-management-class-name)]  

The request is rejected for one of the following reasons:

• The required positional parameter collection-name was not specified.
• The collection-name specified is not valid. A valid collection-name consists of one to 21 parts. Each part is separated from the next part by a period (X'4B'). Each part must start with an uppercase alphabetic, #, $, or @ character. Each part can contain one to eight uppercase alphanumeric, #, $, or @ characters. Each part of the name after the first period is often referred to as a qualification level.
• The required keyword parameter SGN was not specified.
• The optional keyword parameter NEWSCN is specified without specifying OLDSCN. To modify the default storage class name for the collection, both the existing storage class name and the new storage class name must be specified.
• The optional keyword parameter OLDSCN is specified without specifying NEWSCN. To modify the default storage class name for the collection, both the existing storage class name and the new storage class name must be specified.
• The optional keyword parameter NEWMCN is specified without specifying OLDMCN. To modify the default management class name for the collection, both the existing management class name and the new management class name must be specified.
• The optional keyword parameter OLDMCN is specified without specifying NEWMCN. To modify the default management class name for the collection, both the existing management class name and the new management class name must be specified.